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NASA's Voyager Spacecraft Hit a Blazing 50,000 Kelvin "Wall" at the Edge of Our Solar System That Shouldn't Exist

Summary by The Daily Galaxy
Two of NASA’s longest-running space missions, Voyager 1 and Voyager 2, have detected a searing-hot region of space where the Sun’s influence ends and interstellar space begins. The probes, launched in 1977, identified this boundary zone at the edge of the heliosphere where temperatures spike to an estimated 30,000 to 50,000 kelvin. The region lies beyond the orbit of Pluto, in a transitional zone called the heliosheath, where the solar wind slow…
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The Daily Galaxy broke the news in on Sunday, December 28, 2025.
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